2 that come to mind are Adom and caves of qud are very similar in terms of designs and inspirations but share very little in common graphics wise are from being all 2d-esque. You can explore dungeons in a roguelike fantasy world.
Ever heard of Spiderweb Software? They've been putting out lo-fi old-school cRPGs for nearly 30 years now. Take a look at Avernum: Escape from the Pit (a remake of their first game, Exile) and see if that scratches the same itch.